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Defined Benefit Pension Settlement (Details)
$ in Millions
3 Months Ended
Aug. 31, 2023
USD ($)
Defined Benefit Pension Settlement  
Non-cash, pre-tax pension settlement charge $ 26.7
Non-cash, after-tax pension settlement charge 16.1
Surplus plan assets $ 7.6
Excise tax upon withdrawal from the plan (as a percent) 20.00%